I'm all on-board that Value is recently pushing for two-factor authentication on Steam accounts. I'm not happy that they force you to use the Steam mobile app because both on iOS and Android, it's a piece of trash. Plus, I already use Google authenticator for my other two-factor needs.
Does anyone know if Steam uses a rolling code algorithm compatible with standard rolling code generation software? With the right information, can I use GA for Steam? Or is it simply a timed code issued only to some unique ID associated with a mobile app installation linked to your account?